Really Right Stuff USR-340 340mm Universal SOAR Rail with M-LOCK Hardware Kit
The Really Right Stuff USR-340 340mm Universal SOAR Rail with M-LOK Hardware Kit features a lightweight, low-profile design built from durable 6061-T6 aluminium. It offers full compatibility with the R-LOCK standard and RRS 1.5" dovetail clamps, while ambidextrous 5.5mm safety stops and 10mm-spaced R-LOCK holes ensure secure, repeatable mounting. The modular slotted system allows adaptable fitment. Precision-made in the USA, it delivers strength, versatility, and reliability.
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The Really Right Stuff Universal SOAR Rail (USR) with M-LOK Hardware Kit is a cutting-edge mounting solution designed to deliver maximum versatility and precision for modern rifle systems. As the first rail in RRS's line of R-LOCK compatible mounting platforms, the USR integrates a 1.5" dovetail that works seamlessly with the R-LOCK standard, while remaining fully backward compatible with traditional RRS quick-release clamps and heads.
Constructed with 6061-T6 aluminium, the USR is lightweight yet shear-resistant, with geometry optimised for ease of manufacturing, even without CNC machinery. This makes it a practical solution for both professional gunsmiths and competent enthusiasts. The rail features precision-drilled 5.5mm safety stops milled along both edges, enabling ambidextrous use, and R-LOCK holes spaced no less than 10mm apart. These provide reliable, repeatable locking points and support traditional mounting mechanisms.
Its modular slotted mounting system ensures broad compatibility, accommodating various hardware kits for different stock types. This version includes the M-LOK Hardware Kit, enabling seamless integration with AI chassis systems.
Designed as a low-profile, semi-permanent rail, the USR must be mounted flush to a flat surface to maintain performance. It is not intended to be cantilevered beyond a rifle's foregrip, and improper installation on uneven surfaces may compromise its integrity.
Proudly made in the USA, the Universal SOAR Rail is covered by a 5-year guarantee against defects in materials or workmanship
- Dimensions: 340.0mm x 38.1mm x 8.0mm (13.39in x 1.50in x 0.32in)
- Weight (without hardware): 5.8oz (164g)
- R-LOCK Compatibility: Fully supports the latest R-LOCK standard for enhanced locking and anti-slip performance.
- Backwards Compatibility: Works seamlessly with existing RRS quick-release clamps and tripod heads.
- Ambidextrous Design: Safety stops are positioned on both edges for left- or right-handed use.
- Modular Mounting System: Slotted rail design allows for adjustable positioning of anchors to suit various setups.
- Interchangeable Hardware: Supports multiple hardware kits for different rifle stocks and chassis, with the M-LOK kit included.
- Smooth, Low-Profile Finish: Designed to sit close to the rifle chassis or stock without adding unnecessary bulk.
- User-Serviceable Installation: Can be installed by gunsmiths or competent users without CNC equipment.
- Secure Mounting: O-ring-retained anchors ensure components remain firmly in place during use.
- Non-Cantilevered Use: Engineered to be fully supported by the stock or chassis to maintain rigidity and precision.
- Made in the USA: Manufactured with high-quality standards and craftsmanship.
- 5-Year Warranty: Backed by Really Right Stuff’s commitment to quality and customer satisfaction.
- Really Right Stuff USR-340 340mm Universal SOAR Rail
- M-LOK Kit
Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
Please Note: DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY - READ MORE: HERE
COURIERS
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We use DPD , RoyalMail, TNT and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number.
IN-STORE ITEMS
These are items that we have in-stock and will be sent out for delivery as soon as possible. We aim to dispatch all orders within 1-2 working days, but during busy periods dispatch may be delayed by a day or so. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.
PRE-ORDER ITEMS
These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.
INTERNATIONAL DELIVERY & TAXES
In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.
NEED HELP?
If you require any further assistance, please call us on 01803 611 895 or email sales@opticswarehouse.co.uk
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A NOTE ABOUT DPD SHIPMENTS:
- Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
- If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
- The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout. Emails will be sent from "Riviera House 3PL" - if you do not receive this email please check your junk or spam folders.
- Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
- Please view the attached slides HERE for further information!